CN108211846A - A kind of grapheme foam aluminium composite stirring paddle - Google Patents
A kind of grapheme foam aluminium composite stirring paddle Download PDFInfo
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- CN108211846A CN108211846A CN201810078696.8A CN201810078696A CN108211846A CN 108211846 A CN108211846 A CN 108211846A CN 201810078696 A CN201810078696 A CN 201810078696A CN 108211846 A CN108211846 A CN 108211846A
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- graphene
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- foamed aluminium
- composite stirring
- stirring paddle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
- B01F27/053—Stirrers characterised by their elements, materials or mechanical properties characterised by their materials
- B01F27/0531—Stirrers characterised by their elements, materials or mechanical properties characterised by their materials with particular surface characteristics, e.g. coated or rough
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
- B01F27/052—Stirrers with replaceable wearing elements; Wearing elements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/47—Mixing liquids with liquids; Emulsifying involving high-viscosity liquids, e.g. asphalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/04—Inorganic
- B32B2266/045—Metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/718—Weight, e.g. weight per square meter
Abstract
The present invention relates to foamed aluminium composite materials, more particularly to a kind of grapheme foam aluminium composite stirring paddle, the stirrer paddle of the composite stirring paddle includes the graphene layer set between several foamed aluminium layers and adjacent foam aluminium layer, and each foamed aluminium layer is structure as a whole by roll forming；Wherein, the ratio between thickness of the thickness of the foamed aluminium layer and graphene layer is 1：(0.01~0.05)；Grapheme foam aluminium composite stirring paddle provided by the invention, its stirrer paddle is combined by graphene and foamed aluminium material, while stirrer paddle lightweight is ensured, its structural strength is improved, makes it is suitable for the mixing of high viscosity liquid and reduce the energy consumption of batch mixing；By the arrangement of stirrer paddle, the mixing efficiency of material to be mixed is greatly improved, shortens mixing time, indirectly saves batch mixing energy consumption.
Description
Technical field
The present invention relates to foamed aluminium composite materials, and in particular to a kind of grapheme foam aluminium composite stirring paddle.
Background technology
Agitating paddle is commonly used in the mixing of liquid liquid, solid-liquid suspension, gas-liquid or liquid-liquid dispersions.According to paddle to fluid matasomatism when institute
Generate flow pattern divides, paddle can be divided into two types：Axial-flow type paddle and radial-flow type paddle.The rotating speed of paddle is direct
The efficiency of mixing and the effect of mixing are influenced, if the Strength Mass of paddle is unqualified, can not realize high-revolving stirring effect
Fruit, in order to save energy consumption and meet the needs of high viscosity liquid stirring, it may be considered that using the method for reducing stirrer paddle weight.
Foamed aluminium is by parent metal and accounts for the heterogeneous material that the stomata of more than 70% volume formed, with many
Unique performance.Foamed aluminium can be divided into Open-cell Aluminum Foam and closed-cell aluminum foam according to the connectivity in hole.Closed-cell aluminum foam have than
A series of Optimalities such as weight is small, and specific stiffness is big, large specific surface area, damping performance are good, soundproof effect is good, capability of electromagnetic shielding is high
Can, it has a wide range of applications in building, machinery, communications and transportation, aerospace and national defense industry.In view of hole present in foamed aluminium
Gap structure can be considered the defects of metal, for the simple metal or alloy of closely knit polycrystalline structure, foamed aluminium
Mechanical property reduces more apparent.The mechanical property of foamed aluminium is mainly determined by its density, but the size in hole, structure and distribution are same
Sample is the important parameter for determining mechanical property, and the Young's modulus and modulus of shearing of foamed aluminium all increase with the increase of density, and
In order to keep good intensity at a low density, need to enhance it.
Using selection of the foamed aluminium reinforcing material as stirrer paddle, you can while meet the requirement of intensity and low-density,
While ensuring stirrer paddle high intensity, the weight of stirrer paddle is reduced, reduces energy consumption and suitable for high viscosity liquid stirring
Demand.
Invention content
In view of this, the purpose of the present invention is to provide a kind of grapheme foam aluminium composite stirring paddles, improve foamed aluminum materials
The intensity of material, it is ensured that stirrer paddle is suitable for high speed rotation or agitation high viscosity liquid.
To achieve these goals, the present invention is achieved by the following scheme：A kind of grapheme foam aluminium is compound
Agitating paddle, the stirrer paddle of the composite stirring paddle include the graphene set between several foamed aluminium layers and adjacent foam aluminium layer
Layer, each foamed aluminium layer are structure as a whole by roll forming；
Wherein, the ratio between thickness of the thickness of the foamed aluminium layer and graphene layer is 1：(0.01~0.05).
The plane carbon nanomaterial that graphene is made of one layer of carbon atom is the most thin two-dimensional material being currently known,
Its thickness is only 0.335nm, it is made of the lattice of six sides.It is keyed between carbon atom in graphene by σ, imparts graphite
The extremely excellent mechanical property of alkene and structural rigidity are widely used in the enhancing field of composite material.The present invention passes through more
Graphene layer is set in layer foamed aluminium layer, the structural strength of stirrer paddle is improved, is ensuring it with low-density low weight
Simultaneously, it is ensured that stirrer paddle has enough intensity, to be suitable for the stirring demand of high viscosity liquid, while reduces the dynamic of stirring
Power is lost.
As preference, the stirrer paddle includes two layers of foam aluminium layer and the graphene being arranged between foamed aluminium layer
Layer, two foamed aluminium layers are structure as a whole by roll forming.
As preference, the graphene layer is sprayed for graphene slurry, the graphene slurry is grain size
Solvent is added in the Graphene powder of 300~1000 mesh to mix.
First compounding is slurry to the graphene when in use, specifically, using the organic solvent not reacted with aluminium
As the carrier of graphene, the organic solvent can be selected from ethyl alcohol, ethylene glycol, glycerine, isopropanol, butanol, acetone, fourth
One or more in ketone, hexamethylene, heptane, ethyl acetate, toluene, dimethylbenzene, N methyl pyrrolidones are in any proportion
Combination.
In order to make the dispersion of graphene evenly in organic solvent, first by graphene and dispersant, point
Powder is selected from cellulose, methylcellulose, hydroxymethyl cellulose, polyacrylic acid, polyvinylpyrrolidone, polysorbate, poly- second
One kind in glycol, polypropylene glycol, alkylolamides, the addition of the dispersant are 0.1~0.5wt% of organic solvent, are adopted
Graphene is disperseed with dispersing technologies such as ball milling, ultrasound, grinding, high speed shears.
As preference, the graphene of the graphene layer is mechanical stripping graphene, redox graphene, oxidation
One kind in graphene, the number of plies of graphene used is at 20~80 layers.
As preference, the dilute content of graphite in the graphene slurry is 0.2~2mg/mL.
In the present invention, the molding of the stirrer paddle includes the following steps：
(1) formation graphene slurry in organic solvent will be added to after graphene and dispersant；
(2) surface acidification is carried out to foamed aluminium board, removes the oxide layer on surface；
(3) to the foamed aluminium board surface spraying graphene slurry of step (2), then by another bubble through surface acidification
Foam aluminium sheet fits to this and is coated on the foamed aluminium board of graphene slurry；
(4) graphene/foamed aluminium complex is preheated, then obtains final composite stirring paddle through mill milling molding
Leaf.
In above-mentioned forming step (2), the purpose of acidification is to defoam the oxide layer of aluminum surface layer, improves graphene
With the bond strength of foamed aluminium, the present invention does not do special requirement to the specific type of acid solution, can go the oxide layer of skim-coat
, specifically, the acidification acid solution can be any one in hydrochloric acid, nitric acid, sulfuric acid, acetic acid, phosphoric acid, it is described
A concentration of 0.1wt%~10wt% of acid.
After acidification is completed, need to carry out drying and processing, in order to avoid the oxidation of foamed aluminium, under vacuum into
Row drying and processing, the temperature of baking are 100~200 DEG C, and baking time is 20~30min, the vacuum degree of baking for 0.01~
0.1mbar。
In above-mentioned forming step (4), the preheating temperature of graphene/foamed aluminium complex is 300~550 DEG C, preheating time
For 1-2h, draught pressure is 200~600Mpa.
The stirrer paddle of composite stirring paddle of the present invention is disposed with two layers along central shaft, and every layer of stirrer paddle is four
Leaf is diagonally disposed, and the inclined direction of stirrer paddle separately is consistent, and during stirring, material to be mixed is respectively from adjacent
Stirrer paddle flow through over and under, realize the disturbance of material to be mixed in the longitudinal direction, improve the mixing of material to be mixed
Efficiency.
Further, bilevel stirrer paddle is arranged in alternating expression.In this way, material to be mixed is in the longitudinal direction into wave
It is mobile, further improve the mixed effect of material to be mixed.
The arrangement of stirrer paddle provided by the invention, relative to the arrangement of stirring blade of the prior art,
The mixing efficiency of material to be mixed is effectively raised, saves batch mixing energy consumption.
Compared with prior art, the present invention has following technique effect：
1st, grapheme foam aluminium composite stirring paddle provided by the invention, stirrer paddle pass through graphene and foamed aluminium material
Be combined, while stirrer paddle lightweight is ensured, improve its structural strength, make that it is suitable for the mixed of high viscosity liquid
Close and reduce the energy consumption of batch mixing；
2nd, grapheme foam aluminium composite stirring paddle provided by the invention, by the arrangement of stirrer paddle, greatly improves
The mixing efficiency of material to be mixed, shortens mixing time, indirectly saves batch mixing energy consumption.
Description of the drawings
Fig. 1 is the schematic diagram of grapheme foam aluminium composite stirring paddle provided by the invention；
Fig. 2,3 sectional view for stirrer paddle；
Figure label explanation：1- foamed aluminium layers, 2- graphene layers, 10- central shafts, 101- mounting holes, the first agitating paddles of 11-
Leaf, the second stirrer paddles of 12-, 13- third stirrer paddles, the 4th stirrer paddles of 14-.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating and embodiment, and the present invention is furture elucidated.
With reference to shown in Fig. 1, the present invention provides a kind of grapheme foam aluminium composite stirring paddle, including central shaft 10, center
Axis 10 is equipped with to install for the output shaft of power unit along the mounting hole 101 that its axial length direction is arranged and fix, the week of central shaft 10
Be equipped at intervals with four diagonally disposed stirring blades upwards, be followed successively by first, second, third, fourth paddle 11,12,13,
14, interval first, the inclined direction of third stirrer paddle 11,13 it is consistent, the inclination side of the second, the 4th stirrer paddle 12,14
To consistent, which is disposed with two layers, and bilevel stirrer paddle is arranged in alternating expression, i.e., with vertical view
Figure sees that the stirrer paddle positioned at lower floor is all located at the interval of upper strata stirrer paddle.
As Fig. 2 be grapheme foam aluminium composite stirring paddle provided by the invention stirrer paddle sectional view, including two
Layer foamed aluminium layer 1 and the graphene layer 2 being arranged between foamed aluminium layer 1.
As Fig. 3 be grapheme foam aluminium composite stirring paddle provided by the invention stirrer paddle sectional view, including three
Layer foamed aluminium layer 1 and the graphene layer 2 being arranged between adjacent foamed aluminium layer 1.
Grapheme foam aluminium composite stirring paddle provided by the invention is illustrated below by way of specific embodiment to have the advantage that：
Embodiment 1
A kind of grapheme foam aluminium composite stirring paddle, structure as shown in Figure 1, its stirrer paddle structure as shown in Fig. 2,
Specifically, the molding of the stirrer paddle includes the following steps：
(1) formation graphene slurry in ethyl alcohol is added to after graphene is mixed with cellulose, the graphene is in graphene
Content in slurry is 1.1mg/mL, and the addition of dispersant is the 0.3wt% of organic solvent；
(2) (have using hydrochloric acid (a concentration of 5wt%) to the foamed aluminium board of 5mm thickness purchased from Sichuan member Taida new material share
The foamed aluminium board of limit company production, proportion 0.53g/cm3) surface acidification is carried out, remove the oxide layer on surface, Ran Hou
Drying and processing is carried out under vacuum condition, baking condition is：The temperature of baking be 180 DEG C, baking time 25min, baking it is true
Reciprocal of duty cycle is 0.05mbar；
(3) to the graphene slurry of the foamed aluminium board surface spraying 0.1mm thickness of step (2), then by another through surface acid
The foamed aluminium board of change processing fits to this and is coated on the foamed aluminium board of graphene slurry；
(4) graphene/foamed aluminium complex is preheated into 1.5h under the conditions of 400 DEG C, then through milling train 450Mpa pressure
Roll forming obtains final composite stirring blade under power.
Embodiment 2
A kind of grapheme foam aluminium composite stirring paddle, structure as shown in Figure 1, its stirrer paddle structure as shown in Fig. 2,
Specifically, the molding of the stirrer paddle includes the following steps：
(1) formation graphene slurry, the graphene in ethylene glycol is added to after graphene is mixed with methylcellulose to exist
Content in graphene slurry is 0.5mg/mL, and the addition of dispersant is the 0.2wt% of organic solvent；
(2) (have using hydrochloric acid (a concentration of 3wt%) to the foamed aluminium board of 5mm thickness purchased from Sichuan member Taida new material share
The foamed aluminium board of limit company production, proportion 0.53g/cm3) surface acidification is carried out, remove the oxide layer on surface, Ran Hou
Drying and processing is carried out under vacuum condition, baking condition is：The temperature of baking be 120 DEG C, baking time 28min, baking it is true
Reciprocal of duty cycle is 0.02mbar；
(3) to the graphene slurry of the foamed aluminium board surface spraying 0.1mm thickness of step (2), then by another through surface acid
The foamed aluminium board of change processing fits to this and is coated on the foamed aluminium board of graphene slurry；
(4) graphene/foamed aluminium complex is preheated into 1.2h under the conditions of 350 DEG C, then through milling train 300Mpa pressure
Roll forming obtains final composite stirring blade under power.
Embodiment 3
A kind of grapheme foam aluminium composite stirring paddle, structure as shown in Figure 1, its stirrer paddle structure as shown in Fig. 2,
Specifically, the molding of the stirrer paddle includes the following steps：
(1) formation graphene slurry, the graphene in isopropanol are added to after graphene is mixed with hydroxymethyl cellulose
Content in graphene slurry is 1.8mg/mL, and the addition of dispersant is the 0.4wt% of organic solvent；
(2) (Sichuan member Taida new material share is purchased to the foamed aluminium board of 5mm thickness using hydrochloric acid (a concentration of 0.1wt%)
The foamed aluminium board of Co., Ltd's production, proportion 0.53g/cm3) surface acidification is carried out, the oxide layer on surface is removed, then
Drying and processing is carried out under vacuum, and baking condition is：The temperature of baking is 180 DEG C, baking time 22min, baking
Vacuum degree is 0.08mbar；
(3) to the graphene slurry of the foamed aluminium board surface spraying 0.1mm thickness of step (2), then by another through surface acid
The foamed aluminium board of change processing fits to this and is coated on the foamed aluminium board of graphene slurry；
(4) graphene/foamed aluminium complex is preheated into 2h under the conditions of 500 DEG C, then through milling train 500Mpa pressure
Lower roll forming obtains final composite stirring blade.
Embodiment 4
A kind of grapheme foam aluminium composite stirring paddle, structure as shown in Figure 1, its stirrer paddle structure as shown in Fig. 2,
Specifically, the molding of the stirrer paddle includes the following steps：
(1) formation graphene slurry in butanol is added to after graphene is mixed with polyacrylic acid, the graphene is in graphite
Content in alkene slurry is 0.2mg/mL, and the addition of dispersant is the 0.1wt% of organic solvent；
(2) (have using hydrochloric acid (a concentration of 10wt%) to the foamed aluminium board of 5mm thickness purchased from Sichuan member Taida new material share
The foamed aluminium board of limit company production, proportion 0.53g/cm3) surface acidification is carried out, remove the oxide layer on surface, Ran Hou
Drying and processing is carried out under vacuum condition, baking condition is：The temperature of baking be 100 DEG C, baking time 30min, baking it is true
Reciprocal of duty cycle is 0.01mbar；
(3) to the graphene slurry of the foamed aluminium board surface spraying 0.1mm thickness of step (2), then by another through surface acid
The foamed aluminium board of change processing fits to this and is coated on the foamed aluminium board of graphene slurry；
(4) graphene/foamed aluminium complex is preheated into 2h under the conditions of 300 DEG C, then through milling train 200Mpa pressure
Lower roll forming obtains final composite stirring blade.
Embodiment 5
A kind of grapheme foam aluminium composite stirring paddle, structure as shown in Figure 1, its stirrer paddle structure as shown in Fig. 2,
Specifically, the molding of the stirrer paddle includes the following steps：
(1) formation graphene slurry in butanone is added to after graphene is mixed with cellulose, the graphene is in graphene
Content in slurry is 2mg/mL, and the addition of dispersant is the 0.5wt% of organic solvent；
(2) (have using hydrochloric acid (a concentration of 8wt%) to the foamed aluminium board of 5mm thickness purchased from Sichuan member Taida new material share
The foamed aluminium board of limit company production, proportion 0.53g/cm3) surface acidification is carried out, remove the oxide layer on surface, Ran Hou
Drying and processing is carried out under vacuum condition, baking condition is：The temperature of baking be 200 DEG C, baking time 20min, baking it is true
Reciprocal of duty cycle is 0.1mbar；
(3) to the graphene slurry of the foamed aluminium board surface spraying 0.1mm thickness of step (2), then by another through surface acid
The foamed aluminium board of change processing fits to this and is coated on the foamed aluminium board of graphene slurry；
(4) graphene/foamed aluminium complex is preheated into 1h under the conditions of 550 DEG C, then through milling train 200Mpa pressure
Lower roll forming obtains final composite stirring blade.
Embodiment 6
A kind of grapheme foam aluminium composite stirring paddle, structure as shown in Figure 1, its stirrer paddle structure as shown in figure 3,
Specifically, the molding of the stirrer paddle includes the following steps：
(1) formation graphene slurry in ethyl alcohol is added to after graphene is mixed with cellulose, the graphene is in graphene
Content in slurry is 1.1mg/mL, and the addition of dispersant is the 0.3wt% of organic solvent；
(2) (have using hydrochloric acid (a concentration of 5wt%) to the foamed aluminium board of 5mm thickness purchased from Sichuan member Taida new material share
The foamed aluminium board of limit company production, proportion 0.53g/cm3) surface acidification is carried out, remove the oxide layer on surface, Ran Hou
Drying and processing is carried out under vacuum condition, baking condition is：The temperature of baking be 180 DEG C, baking time 25min, baking it is true
Reciprocal of duty cycle is 0.05mbar；
(3) to the graphene slurry of the foamed aluminium board surface spraying 0.1mm thickness of step (2), then by another through surface acid
The foamed aluminium board of change processing fits to this and is coated on the foamed aluminium board of graphene slurry, then proceedes to spray on the foamed aluminium board
The graphene slurry of 0.1mm thickness is applied, and continues another foamed aluminium board through surface acidification fitting to this and is coated with graphite
On the foamed aluminium board of alkene slurry；
(4) graphene/foamed aluminium complex is preheated into 1.5h under the conditions of 400 DEG C, then through milling train 450Mpa pressure
Roll forming obtains final composite stirring blade under power.
Embodiment 7
A kind of grapheme foam aluminium composite stirring paddle, structure as shown in Figure 1, its stirrer paddle structure as shown in Fig. 2,
Specifically, the molding of the stirrer paddle includes the following steps：
(1) formation graphene slurry in ethyl alcohol is added to after graphene is mixed with cellulose, the graphene is in graphene
Content in slurry is 1.1mg/mL, and the addition of dispersant is the 0.3wt% of organic solvent；
(2) (have using hydrochloric acid (a concentration of 5wt%) to the foamed aluminium board of 5mm thickness purchased from Sichuan member Taida new material share
The foamed aluminium board of limit company production, proportion 0.53g/cm3) surface acidification is carried out, remove the oxide layer on surface, Ran Hou
Drying and processing is carried out under vacuum condition, baking condition is：The temperature of baking be 180 DEG C, baking time 25min, baking it is true
Reciprocal of duty cycle is 0.05mbar；
(3) to the graphene slurry of the foamed aluminium board surface spraying 0.05mm thickness of step (2), then by another through surface acid
The foamed aluminium board of change processing fits to this and is coated on the foamed aluminium board of graphene slurry；
(4) graphene/foamed aluminium complex is preheated into 1.5h under the conditions of 400 DEG C, then through milling train 450Mpa pressure
Roll forming obtains final composite stirring blade under power.
Embodiment 8
A kind of grapheme foam aluminium composite stirring paddle, structure as shown in Figure 1, its stirrer paddle structure as shown in Fig. 2,
Specifically, the molding of the stirrer paddle includes the following steps：
(1) formation graphene slurry in ethyl alcohol is added to after graphene is mixed with cellulose, the graphene is in graphene
Content in slurry is 1.1mg/mL, and the addition of dispersant is the 0.3wt% of organic solvent；
(2) (have using hydrochloric acid (a concentration of 5wt%) to the foamed aluminium board of 5mm thickness purchased from Sichuan member Taida new material share
The foamed aluminium board of limit company production, proportion 0.53g/cm3) surface acidification is carried out, remove the oxide layer on surface, Ran Hou
Drying and processing is carried out under vacuum condition, baking condition is：The temperature of baking be 180 DEG C, baking time 25min, baking it is true
Reciprocal of duty cycle is 0.05mbar；
(3) to the graphene slurry of the foamed aluminium board surface spraying 0.25mm thickness of step (2), then by another through surface acid
The foamed aluminium board of change processing fits to this and is coated on the foamed aluminium board of graphene slurry；
(4) graphene/foamed aluminium complex is preheated into 1.5h under the conditions of 400 DEG C, then through milling train 450Mpa pressure
Roll forming obtains final composite stirring blade under power.
Comparative example 1
A kind of grapheme foam aluminium composite stirring paddle, structure is as shown in Figure 1, its stirrer paddle is used as in embodiment 1
Two layers of foam aluminium sheet Direct Rolling form, the condition of rolling is consistent with the operating condition of embodiment 1, under the pressure of 450Mpa
Roll forming.
The survey of bending strength is carried out to the stirrer paddle obtained in above-described embodiment according to the standard of GB/T 9341-2000
Examination, and test result is recorded in table 1.
Table 1：
It can be seen that the stirrer paddle of grapheme foam aluminium composite stirring paddle provided by the invention by above-mentioned test data
With excellent bending strength.
Basic principle, main feature and the features of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement is both fallen in the range of claimed invention.The scope of protection of present invention is by appended claims
And its equivalent thereof.
Claims (7)
1. a kind of grapheme foam aluminium composite stirring paddle, it is characterised in that：The stirrer paddle of the composite stirring paddle includes several
The graphene layer set between foamed aluminium layer and adjacent foam aluminium layer, each foamed aluminium layer are structure as a whole by roll forming；
Wherein, the ratio between thickness of the thickness of the foamed aluminium layer and graphene layer is 1：(0.01~0.05).
2. grapheme foam aluminium composite stirring paddle according to claim 1, wherein, the stirrer paddle includes two layers of bubble
Foam aluminium layer and the graphene layer being arranged between foamed aluminium layer, two foamed aluminium layers are structure as a whole by roll forming.
3. grapheme foam aluminium composite stirring paddle according to claim 1 or 2, wherein, the graphene layer is graphite
Alkene slurry sprays, and the graphene slurry adds in solvent in the Graphene powder of 300~1000 mesh for grain size and mixes.
4. grapheme foam aluminium composite stirring paddle according to claim 1 or 2, wherein, the graphite of the graphene layer
Alkene is mechanical stripping graphene, redox graphene, one kind in graphene oxide, the number of plies of graphene used 20~
80 layers.
5. grapheme foam aluminium composite stirring paddle according to claim 3, wherein, the graphite in the graphene slurry is dilute
Content is 0.2~2mg/mL.
6. grapheme foam aluminium composite stirring paddle according to claim 1 or 2, wherein, the composite stirring paddle stirs
It mixes blade to be disposed with two layers, every layer of stirrer paddle is diagonally disposed for four leaves, and the inclined direction of stirrer paddle separately is consistent.
7. grapheme foam aluminium composite stirring paddle according to claim 6, wherein, bilevel stirrer paddle is in staggeredly
Formula is arranged.
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| CN201810078696.8A CN108211846A (en) | 2018-01-26 | 2018-01-26 | A kind of grapheme foam aluminium composite stirring paddle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114376402A (en) * | 2020-10-20 | 2022-04-22 | 广东美的生活电器制造有限公司 | Liner assembly, water treatment device and preparation method of foamed aluminum plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201454479U (en) * | 2009-04-23 | 2010-05-12 | 杭州龙邦合金科技有限公司 | Stirring head capable of controlling foam aluminum pore |
| CN107000035A (en) * | 2014-11-28 | 2017-08-01 | 德国古斯塔夫·爱立许机械制造有限公司 | Processing and the device of cooling casting molding sand |
| CN104846230A (en) * | 2015-05-27 | 2015-08-19 | 苏州阿罗米科技有限公司 | Preparation method of aluminum-base graphene composite material |
| FR3040644A1 (en) * | 2015-09-04 | 2017-03-10 | Commissariat Energie Atomique | DEVICE FOR MECHANICAL BREWING OF A FUSION METAL FOR A DIRECTED SOLIDIFICATION PROCESS |
| CN206837892U (en) * | 2017-05-01 | 2018-01-05 | 无锡市翱宇特新科技发展有限公司 | A kind of high intensity Chemical filler mixer |
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| CN114376402A (en) * | 2020-10-20 | 2022-04-22 | 广东美的生活电器制造有限公司 | Liner assembly, water treatment device and preparation method of foamed aluminum plate |
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